40036873 has 2 divisors, whose sum is σ = 40036874. Its totient is φ = 40036872.

The previous prime is 40036861. The next prime is 40036891. The reversal of 40036873 is 37863004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36144144 + 3892729 = 6012^2 + 1973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40036873 is a prime.

It is not a weakly prime, because it can be changed into another prime (40036673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20018436 + 20018437.

It is an arithmetic number, because the mean of its divisors is an integer number (20018437).

Almost surely, 2^40036873 is an apocalyptic number.

It is an amenable number.

40036873 is a deficient number, since it is larger than the sum of its proper divisors (1).

40036873 is an equidigital number, since it uses as much as digits as its factorization.

40036873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40036873 is about 6327.4697154550. The cubic root of 40036873 is about 342.1002436332.

Adding to 40036873 its reverse (37863004), we get a palindrome (77899877).

It can be divided in two parts, 400 and 36873, that added together give a palindrome (37273).

The spelling of 40036873 in words is "forty million, thirty-six thousand, eight hundred seventy-three".